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<?php $strings = [ "tHe iPad hAS gONE ouT of STOCK PoWER uP YOur iPhone wHAT moDEL is YOUR aPPLE iPHOne", "fly the chopper to the helipad. an audiphone is a type of hearing aid consisting of a diaphragm that, when placed against the upper teeth, conveys sound vibrations to the inner ear" ]; foreach ($strings as $string) { echo preg_replace_callback('~\bi\K(?:pad|phone)\b|[a-z]+~', function($m) {return ucfirst($m[0]);}, strtolower($string)); echo "\n---\n"; }
Output for 5.6.38, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
The iPad Has Gone Out Of Stock Power Up Your iPhone What Model Is Your Apple iPhone --- Fly The Chopper To The Helipad. An Audiphone Is A Type Of Hearing Aid Consisting Of A Diaphragm That, When Placed Against The Upper Teeth, Conveys Sound Vibrations To The Inner Ear ---
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497.39 ms | 408 KiB | 5 Q